SPACI score report for 2c15 in ASTRAL 2.06:

PDB Entry: 2c15
SPACI score: 0.64
AEROSPACI score: 0.64

Experiment type: XRAY
Resolution: 1.48
R-factor: 0.149
PCK1 PROCHECK Ramachandran: 4
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 1
WCK1 WHAT_CHECK Packing: -0.969
WCK2 WHAT_CHECK Ramachandran: -0.399
WCK3 WHAT_CHECK Chi angles: 1.197
WCK4 WHAT_CHECK Backbone: 0.355

Note: Here are links to pages about PROCHECK and WHAT_CHECK.

Here is the full WHAT_CHECK report on this protein (linked from the WHAT_CHECK site).